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Finding the Fourth Proportional to 703.07, 1,054.59 and 264.39

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Solution

The fourth proportional to 703.07, 1,054.59 and 264.39 is: 396.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    703.07 : 1,054.59 = 264.39 : x
  2. Step 2: Convert to fraction form
    703.07/1,054.59 = 264.39/x
  3. Step 3: Cross multiply
    703.07x = 1,054.59 × 264.39
  4. Step 4: Simplify right side
    703.07x = 278,823.05
  5. Step 5: Solve for x
    x = 278,823.05/703.07
  6. Step 6: Final answer
    x = 396.58

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.